ZenHub

If you have more than 2 developers this thing is basically a requirement within github to manage sprints if you use agile methodology. Why use a different website entirely when you can run your entire board right from github itself? I've tried other solutions but basing everything on github issues makes it so no duplicate work has to take place. If the UX quirks and mobile were fixed this would be 10/10 for me!If you're only one or two devs on a team it may be overkill to use, but if you're going to scale it's better to put the process in early.

Alternatives Considered

Actionspace

ZenHub

Way better than competition if you use github because it seamlessly integrates without doing anything. You don't need to duplicate your issues, etc. As long as your devs already use github and github issues this will be a no brainer and simple to implement. With JIRA or Trello we were doing everything twice, things got dropped, etc.